PCM1809
- Stereo
low
power ADC:
- 2-channel analog microphones or line-in
- ADC line and microphone differential and
single-ended input performance:
- PCM1809
dynamic range:
- Differential Input: 104dB
- Single-ended Input: 102dB
- THD+N: –95 dB
- PCM1809
dynamic range:
- 2-VRMS differential full-scale input
- Direct Coupling
- Wide Input Common Mode support
- AC/DC Coupling support
- ADC sample rate (fS) = 8 kHz to 192 kHz
- Hardware pin control configurations
- Linear-phase or low-latency filter selection
- Flexible audio
serial data interface:
- Controller or target interface selection
- 32-bits, 2-channel TDM
- 32-bits, 2-channel I2S
- Automatic power-down upon loss of audio clocks
- Integrated high-performance audio PLL
- Single-supply operation: 3.3 V
- I/O-supply operation: 3.3 V or 1.8 V
- Power consumption
for 3.3-V AVDD supply:
- 19.6 mW/channel at 16-kHz sample rate
- 21.3 mW/channel at 48-kHz sample rate
The PCM1809 is a low power audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels. The device supports single-ended and differential line and microphone inputs with a 2VRMS full-scale differential signal. The device integrates a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM1809 supports Controller and target mode selection for the audio bus interface operation. These integrated features, along with the ability to be powered from a single supply of 3.3V, make the device an excellent choice for cost-sensitive, space-constrained audio systems in microphone recording applications.
The PCM1809 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | PCM1809 Stereo Channel, 102dB Dynamic Range Audio ADC datasheet | PDF | HTML | 2024/5/7 | ||
| 證書 | PCM1809EVM EU Declaration of Conformity (DoC) | 2024/5/22 |
設計與開發
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PCM1809EVM — PCM1809 評估模組
PCM1809 評估模組 (EVM) 允許使用者測試 PCM1809 的功能，這是一款雙通道 DC 耦合硬體控制高性能音訊 ADC，主要用於語音啟用系統、專業麥克風、語音會議、可攜式運算、通訊和娛樂應用。此評估模組提供與輸入、輸出和硬體控制接腳的方便連接
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 20 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。